Answer
200ml of 60% solution and 100ml of 30% solution
Work Step by Step
x will be the amount of 60% solution and
we want to obtain 300ml of 50% solution
amount of 60% sol. +amount of 30% sol.(300ml-x) = amount of 50% sol.(which is 300ml)
0.6(x)+0.3(300-x)=0.5(300)
0.6x+90-0.3x=150
0.3x=60
x=200
300-x=300-200=100 (for 30% sol.)
